lastModifiedDateTime modified upon requesting pdfDocument

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Posted on by Milla

Hello,

We are observing the following API behavior when requesting the pdfDocument for the sales invoices in Business Central:

the lastModifiedDateTime datestamp is changing, evethough, the GET method is used.

If the ReadOnly Data-Access-Intent header is added, the "BadRequest_IncompatibleDataAccessIntent" error is returned for the salesInvoices endpoint reading: "Cannot modify a record. Current connection intent is Read-Only."

Is this an expected behavior? Could the modification of the lastModifiedDateTime be prevented?

Thanks a lot

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Dynamics 365 Business Central

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OussamaSabbouh 5,379 on at

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Hello,

Calling the pdfDocument GET endpoint still triggers internal logic that modifies the invoice record → so lastModifiedDateTime changes.

When you force Data-Access-Intent: ReadOnly, BC blocks that internal write → you get BadRequest_IncompatibleDataAccessIntent.

So the ReadOnly mode can’t be used here.

And no — you cannot prevent the timestamp update on the standard API.

Regards,

Oussama Sabbouh

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