# How can I do a contra when customer is also supplier? **URL:** \ **Category:** Uncategorized\ **Created:** [August 27, 2014, 3:37pm UTC](https://forum.manager.io/t/how-can-i-do-a-contra-when-customer-is-also-supplier/1445 "2014-08-27T15:37:14Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![Brucanna](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/brucanna/32/1960_2.png) [@Brucanna](https://forum.manager.io/u/Brucanna)\ **Post date:** [June 9, 2016, 1:33pm UTC](https://forum.manager.io/t/how-can-i-do-a-contra-when-customer-is-also-supplier/1445/6 "2016-06-09T13:33:17Z")
Read this guide > [@Handling situation where customer is also supplier](https://forum.manager.io/t/handling-situation-where-customer-is-also-supplier/5496): > > If you have a customer who is also a supplier, you may want to offset the outstanding customer and supplier invoices. This is known as a contra entry. In Manager, all sales invoices are sub-accounts of Accounts receivable while purchase invoices are sub-accounts of Accounts payable. This means you can easily credit sales invoices and debit purchase invoices using journal entries. For example, you have a customer who owes you 1,000. [image] At the same time you have made a credit purchase of … --- _[View the full topic](https://forum.manager.io/t/how-can-i-do-a-contra-when-customer-is-also-supplier/1445)._