Message type: E = Error
Message class:  SZDM_CC_CHKS_TITLES - Title messages related to check classes 
Message number: 071
Message text: The table will be read only during an upgrade using ZDO
Error message extract from SAP system. Copyright SAP SE.
The SAP error message SZDM_CC_CHKS_TITLES071 indicates that a specific table is in a read-only state during an upgrade process using the Zero Downtime Option (ZDO). This typically occurs when the system is undergoing an upgrade, and certain tables are locked to prevent changes that could lead to inconsistencies.
Cause: Upgrade Process: The error is primarily caused by the upgrade process itself, where the system is transitioning to a new version. During this time, certain tables are locked to ensure data integrity. Zero Downtime Option (ZDO): When using ZDO, the system aims to minimize downtime by allowing certain operations to continue while the upgrade is in progress. However, this can lead to specific tables being set to read-only to prevent any modifications.
Solution: Wait for Upgrade Completion: The simplest solution is to wait until the upgrade process is completed. Once the upgrade is finished, the tables will be released from the read-only state, and normal operations
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