# Dynamics GP Essentials: Document Attachment Error with GP 2015 R2 – “A Save Operation on table ‘coAttachMSTR’ has created a duplicate key error”

- URL: https://dynamicaccounting.net/dynamics-gp-essentials-document-attachment-error-with-gp-2015-r2-a-save-operation-on-table-coattachmstr-has-created-a-duplicate-key-error/
- Date: 2015-07-08
- Topics: Install, Upgrade & Admin, SQL & Data
- Dynamics GP versions mentioned: GP 2015
- Type: link to an external article
- Source: http://mahmoudsaadi.blogspot.com/2015/07/document-attachment-error-with-gp-2015.html

*Mahmoud works through[Document Attachment Error with GP 2015 R2 – “A Save Operation on table ‘coAttachMSTR’ has created a duplicate key error”](http://mahmoudsaadi.blogspot.com/2015/07/document-attachment-error-with-gp-2015.html)*