FI MM settings are maintained in transaction code OBYC. Within these there are various transaction keys to be maintained like BSX, WRX, GBB, PRD etc. In each of these transaction keys you specify the GL accounts which gets automatically passed at the time of entry.

Few examples could be:

• BSX- Stands for Inventory Posting Debit
• GBB-Standsfor Goods Issue/Scrapping/delivery of goods etc
• PRD- Stands for Price Differences.

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