Types of MSP Maintenance Transactions

20.1 - Types of MSP Maintenance Transactions (Rev. 12078; Issued:06-14-23; Effective: 05-29-23; Implementation: 05-29-23) The three types of maintenance transactions are add, change, and delete. The MSP Contractor shall use MSP maintenance transaction type "O" (zero) for an add or a change transaction. • The transaction is an add when no matching MSP occurrence - NO MATCHING MSP auxiliary record - is found for the beneficiary; • The transaction is a change when a matching MSP occurrence is found. After a successful MSP maintenance transaction processes through CWF, before and after images of the MSP auxiliary file occurrence are written to the MSP Audit File.