Forum Discussion

Victor_F's avatar
Victor_F
Copper Contributor
Aug 18, 2025

Extracting attachments from Business Central via API early 2024

Hi all According to the API documentation, the pdf or images attached to e.g. purchase invoices can be found using /attachments endpoint. This works very well for late 2024 and 2025 invoices, but fi...
api
microsoft 365
Kidd_Ip's avatar
Kidd_Ip
MVP
Aug 19, 2025

Would suggest:

 

  1. Try Filtering by Journal or Ledger Entry

Use the /attachments endpoint with a filter like:

GET /api/v1.0/companies({id})/attachments?$filter=parentId eq {journalLineId} and parentType eq 'Journal'

Replace parentType with 'GeneralLedgerEntry' if applicable.

  1. Check for Incoming Documents

Older PDFs may be stored as Incoming Documents. Try querying:

GET /api/v1.0/companies({id})/incomingDocuments

Then match the sourceId or documentId with your ledger entries.

  1. Explore Media or MediaSet Fields

Some attachments may be stored using the Media or MediaSet data types. These aren't always exposed via /attachments, so you may need to:

  • Use AL code to expose them via a custom API
  • Check if the document is linked to a custom page or extension

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