Import columns from a CSV file
Uploads a CSV file (multipart field file, at most 500 KiB) describing
columns, one per row. The import runs in the background: poll
GET /bulk-import/{importId}/status.
replace: the template ends up with exactly the columns of the file; columns missing from it are deleted.merge: columns are matched by name; existing ones are updated, new ones are added, and the others are kept.
Columns beyond your plan's column limit are skipped and reported as violations. A file where no row is valid fails without changing anything.
One import runs at a time per template and kind: while one is still running, it is returned unchanged and this file is ignored.
https://api.wetransform.com/bulk-import/columns/{templateHandle}/{method}
| Parameter | Description | Pattern |
|---|---|---|
{method} |
|
replace|merge |
{templateHandle} |
The template handle, e.g. |
|
File uploads must use the regular HTTP multipart/form-data body encoding.
| Field name | Description | Constraints | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| file |
The CSV file ( |
|
||||||||||
success
boolean
Always true on successful responses.
true
payload
object
Payload of the requested resource.
payload.import_id
string
nullable
UUID to poll with GET /bulk-import/{importId}/status. Reused by later imports of the same kind into the same template.
"cb171a75-0268-40d5-9147-c7118ccb161b"
payload.type
string
nullable
What is imported: column or value_list for these endpoints.
Possible values: column, value_list, customer
"column"
payload.method
string
nullable
The strategy of the import: replace removes what the file does not contain, merge keeps it.
Possible values: replace, merge
"replace"
payload.status
string
nullable
pending or processing: running; completed: done (see number_of_violations); failed: see error.
Possible values: idle, pending, processing, completed, failed
"processing"
payload.progress
integer
nullable
Progress, from 0 to 100.
50
payload.source_url
string
nullable
URL of the imported CSV file.
"https:\/\/example.com\/temp\/import.123451234512.csv"
payload.report_url
string
nullable
URL of a CSV file listing each rejected row and why, when the file had violations.
"https:\/\/example.com\/temp\/report.123451234512.csv"
payload.number_of_valid_rows
integer
nullable
Number of rows of the file that passed validation and were applied.
123
payload.number_of_violations
integer
nullable
Number of violations found in the file (rows rejected, or skipped because of your plan's column limit).
1
payload.error
string
nullable
Why the import failed, e.g. when no row of the file is valid.
payload.template_handle
string
nullable
Handle of the template the import targets.
"my-template"
product
object
nullable
A product needed.
Not null if user requires to buy a specific product (permission or limitation) in order to access a feature.
product.requirement
string
nullable
Whether the user requested a features s/he doesn't have access to,
or the user needs greater limits.
Possible values: permission, limitation
"permission"
product.permission
object
nullable
The required permission.
You will need to know which permission is needed in order to fill up search filters in the shop.
product.permission.description
string
nullable
A human-understandable name for the permission.
product.permission.name
string
A technical permission name (ex: ORGANISATION_UPDATE_SETTINGS).
Possible values depend on the context, check the domain's metadata endpoint.
"X_SOURCE_FORMAT_XML"
product.limitation_type
string
nullable
The limitation that needs to be increased (ex: number of columns).
product.limitation_needed_value
integer
nullable
The needed resource quantity (if receiver uses 9 columns in a template, this value is 9).
product.limitation_current_value
integer
nullable
The current value of the limitation (if receiver is allowed to use 10 columns, this value is 10).
product.limitation_object
object
nullable
The limitation type in a readable format, for example, "lines per file".
product.ai_feature
string
nullable
The AI feature that could not run, when an AI feature is what hit the limitation
(null for any other product).
Possible values: rule_transformation, rule_template, rule_function, rule_constraint, column_constraints, normalizer, chat_db, doc_assistant, api_doc_assistant, autocorrect, autocorrect_fill, invoice_reader, column_match, value_match, power_populate_with_ai, power_extract_from_pdf, power_extract_from_spreadsheet, agent, column_enrichment, column_constraints_batch, agent_compression, agent_workflow_scaffold, agent_phase_fill, push_json_column_match, value_match_embedding, normalizer_debugger, power_extract_from_text, template_format_custom, power_describe_image, power_background_erase, hosted_image_view, value_match_context
product.message
object
nullable
What stopped, on what, and what it would take — translated and ready to display,
with one wording per AI feature: "Matching the values of column «Couleur» with AI
needs 12 AI credits, and 10 are left."
Null whenever ai_feature is, and on the rare AI exposure that has no subject to
name (the template collection's json_column_match_product covers no single
template). Fall back to the generic call-to-action then.
product.is_cta
boolean
nullable
Whether a Call To Action should be displayed.
It may not be displayed if:
- the limitation is on the membership role
- the limitation is on the customer role
- the user is a sender
debug
array
Debug information.
Contains logs about business logic explaining state of the response payload.
Provided in development & admin modes only.
* are nullable.
{
"success": true,
"payload": {
"import_id": "cb171a75-0268-40d5-9147-c7118ccb161b",
"type": "column",
"method": "replace",
"status": "processing",
"progress": 50,
"source_url": "https:\/\/example.com\/temp\/import.123451234512.csv",
"report_url": "https:\/\/example.com\/temp\/report.123451234512.csv",
"number_of_valid_rows": 123,
"number_of_violations": 1,
"error": null,
"template_handle": "my-template"
},
"product": {
"requirement": "permission",
"permission": {
"name": "X_SOURCE_FORMAT_XML",
"description": "Can import XML files"
},
"limitation_type": null,
"limitation_needed_value": null,
"limitation_current_value": null,
"limitation_object": null,
"is_cta": false,
"ai_feature": null,
"message": null
},
"debug": []
}success
boolean
Always false on error responses.
false
payload
object
Context about the error, if any.
product
object
nullable
A product needed.
Not null if user requires to buy a specific product (permission or limitation) in order to access a feature.
product.requirement
string
nullable
Whether the user requested a features s/he doesn't have access to,
or the user needs greater limits.
Possible values: permission, limitation
"permission"
product.permission
object
nullable
The required permission.
You will need to know which permission is needed in order to fill up search filters in the shop.
product.permission.description
string
nullable
A human-understandable name for the permission.
product.permission.name
string
A technical permission name (ex: ORGANISATION_UPDATE_SETTINGS).
Possible values depend on the context, check the domain's metadata endpoint.
"X_SOURCE_FORMAT_XML"
product.limitation_type
string
nullable
The limitation that needs to be increased (ex: number of columns).
product.limitation_needed_value
integer
nullable
The needed resource quantity (if receiver uses 9 columns in a template, this value is 9).
product.limitation_current_value
integer
nullable
The current value of the limitation (if receiver is allowed to use 10 columns, this value is 10).
product.limitation_object
object
nullable
The limitation type in a readable format, for example, "lines per file".
product.ai_feature
string
nullable
The AI feature that could not run, when an AI feature is what hit the limitation
(null for any other product).
Possible values: rule_transformation, rule_template, rule_function, rule_constraint, column_constraints, normalizer, chat_db, doc_assistant, api_doc_assistant, autocorrect, autocorrect_fill, invoice_reader, column_match, value_match, power_populate_with_ai, power_extract_from_pdf, power_extract_from_spreadsheet, agent, column_enrichment, column_constraints_batch, agent_compression, agent_workflow_scaffold, agent_phase_fill, push_json_column_match, value_match_embedding, normalizer_debugger, power_extract_from_text, template_format_custom, power_describe_image, power_background_erase, hosted_image_view, value_match_context
product.message
object
nullable
What stopped, on what, and what it would take — translated and ready to display,
with one wording per AI feature: "Matching the values of column «Couleur» with AI
needs 12 AI credits, and 10 are left."
Null whenever ai_feature is, and on the rare AI exposure that has no subject to
name (the template collection's json_column_match_product covers no single
template). Fall back to the generic call-to-action then.
product.is_cta
boolean
nullable
Whether a Call To Action should be displayed.
It may not be displayed if:
- the limitation is on the membership role
- the limitation is on the customer role
- the user is a sender
debug
array
Debug information.
Contains logs about business logic explaining state of the response payload.
Provided in development & admin modes only.
* are nullable.
{
"success": false,
"payload": [],
"product": {
"requirement": "permission",
"permission": {
"name": "X_SOURCE_FORMAT_XML",
"description": "Can import XML files"
},
"limitation_type": null,
"limitation_needed_value": null,
"limitation_current_value": null,
"limitation_object": null,
"is_cta": false,
"ai_feature": null,
"message": null
},
"debug": []
}User is well authenticated, but not authorized to access the resource.
It can happen if user is trying to use a feature that s/he didn't pay for, access someone else's resource, etc.
These issues are normally fixed by the frontend, which should render features and resources user has access to.
success
boolean
Always false on error responses.
false
payload
object
Context about the error, if any.
product
object
nullable
A product needed.
Not null if user requires to buy a specific product (permission or limitation) in order to access a feature.
product.requirement
string
nullable
Whether the user requested a features s/he doesn't have access to,
or the user needs greater limits.
Possible values: permission, limitation
"permission"
product.permission
object
nullable
The required permission.
You will need to know which permission is needed in order to fill up search filters in the shop.
product.permission.description
string
nullable
A human-understandable name for the permission.
product.permission.name
string
A technical permission name (ex: ORGANISATION_UPDATE_SETTINGS).
Possible values depend on the context, check the domain's metadata endpoint.
"X_SOURCE_FORMAT_XML"
product.limitation_type
string
nullable
The limitation that needs to be increased (ex: number of columns).
product.limitation_needed_value
integer
nullable
The needed resource quantity (if receiver uses 9 columns in a template, this value is 9).
product.limitation_current_value
integer
nullable
The current value of the limitation (if receiver is allowed to use 10 columns, this value is 10).
product.limitation_object
object
nullable
The limitation type in a readable format, for example, "lines per file".
product.ai_feature
string
nullable
The AI feature that could not run, when an AI feature is what hit the limitation
(null for any other product).
Possible values: rule_transformation, rule_template, rule_function, rule_constraint, column_constraints, normalizer, chat_db, doc_assistant, api_doc_assistant, autocorrect, autocorrect_fill, invoice_reader, column_match, value_match, power_populate_with_ai, power_extract_from_pdf, power_extract_from_spreadsheet, agent, column_enrichment, column_constraints_batch, agent_compression, agent_workflow_scaffold, agent_phase_fill, push_json_column_match, value_match_embedding, normalizer_debugger, power_extract_from_text, template_format_custom, power_describe_image, power_background_erase, hosted_image_view, value_match_context
product.message
object
nullable
What stopped, on what, and what it would take — translated and ready to display,
with one wording per AI feature: "Matching the values of column «Couleur» with AI
needs 12 AI credits, and 10 are left."
Null whenever ai_feature is, and on the rare AI exposure that has no subject to
name (the template collection's json_column_match_product covers no single
template). Fall back to the generic call-to-action then.
product.is_cta
boolean
nullable
Whether a Call To Action should be displayed.
It may not be displayed if:
- the limitation is on the membership role
- the limitation is on the customer role
- the user is a sender
debug
array
Debug information.
Contains logs about business logic explaining state of the response payload.
Provided in development & admin modes only.
* are nullable.
{
"success": false,
"payload": [],
"product": {
"requirement": "permission",
"permission": {
"name": "X_SOURCE_FORMAT_XML",
"description": "Can import XML files"
},
"limitation_type": null,
"limitation_needed_value": null,
"limitation_current_value": null,
"limitation_object": null,
"is_cta": false,
"ai_feature": null,
"message": null
},
"debug": []
}