Error: ""The file AP_Invoice is being used by another task and cannot be opened""
TIL: This appears to be a limitation where repetitive invoices cannot be processed while someone is in AP -- even when batch entry is enabled and in use.
Because the Sage knowledgebase does not indicate anything about which version(s) the issue may apply to there is no way to know if this is something inherent to Sage or if it only applied to an older version or all versions.
[Link](https://support.na.sage.com/selfservice/viewdocument.do?noCount=true&externalId=54619&sliceId=1&cmd=displayKC&dialogID=375787&docType=kc&isLoadPublishedVer=&stateId=375788&docTypeID=DT_Article&ViewedDocsListHelper=com.kanisa.apps.common.BaseViewedDocsListHelperImpl)