A restriction applies when you request the linkage editor to perform both a CHANGE and a REPLACE operation on the same included module. This situation occurs when you delete one or more control sections and rename references to symbols within a removed control section to some other external symbol all within the scope of a single INCLUDE. When you change more than one entry name within a removed control section to a single new external symbol, you must specifically include the control section that resolves the new external symbol prior to the CHANGE operation.
If a replaced control section contains unresolved external references and the replacing control section does not, you must either specify the NCAL parameter, use the REPLACE statement to delete the unresolved external references, or use the LIBRARY statement to mark the references for restricted no-call or never-call.