3451607 - The mapping step keeps loading when exporting data from SAC to BPC, BW or S/4 using the legacy export

The legacy export option is used to export data from SAC to another system, such as S/4HANA, BPC, BW or BW/4HANA.

However, the dimension mapping dialog keeps loading and does not show.

In the Network trace, there is a red request /sap/fpa/services/rest/epm/error?tenant=B with the payload as belw:

• code: "GENERIC_ERROR"
  component: ""
  message: "[Application Error]:Cannot read properties of undefined (reading 'toUpperCase')"
  previous: null
  severity: 0
  stack: "TypeError: Cannot read properties of undefined (reading 'toUpperCase') at U (https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/app.chunk.dm-chunk.3341fcdac860d274fb3f.js:144:2503040)\n at https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/app.chunk.135.15827808407539897f39.js:9:1639255\n at https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/115.main.1a5a73070eb4d4a4f7c8.js:1:532104\n at Object.<anonymous> (https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/115.main.1a5a73070eb4d4a4f7c8.js:1:512449)\n at u (https://sapui5.hana.ondemand.com/1.108.20/resources/sap-ui-core.js:1027:25639)\n at Object.fireWith [as resolveWith] (https://sapui5.hana.ondemand.com/1.108.20/resources/sap-ui-core.js:1027:26474)\n at k (https://sapui5.hana.ondemand.com/1.108.20/resources/sap-ui-core.js:1027:84115)\n at f.<anonymous> (https://sapui5.hana.ondemand.com/1.108.20/resources/sap-ui-core.js:1027:86801)\n at f.<anonymous> (https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/app.chunk.main-chunk.a182d4803f90da7f629d.js:15:35412)\n at XMLHttpRequest.n (https://assets.sapanalytics.cloud/production/uiAssets-2024.2.10/uiAssets/app.chunk.main-chunk.a182d4803f90da7f629d.js:13:17065)"

• SAP Analytics Cloud (Enterprise)

SAP Cloud for Planning, sc4p, c4p, cforp, cloudforplanning, Cloud for Analytics, Cloud4Analytics, CloudforAnalytics, Cloud 4 Planning, BOC, SAPBusinessObjectsCloud, BusinessObjectsCloud, BOBJcloud, BOCloud., SAC, SAP AC, Cloud-Analytics, CloudAnalytics, SAPCloudAnalytics,Error, Issue, System, Data, User, Unable, Access, Sac, Acquisition, Model, Connect, Story, Tenant, Import, Failed, Using, Working, SAP Cloud for Planning, sc4p, c4p, cforp, cloudforplanning, Cloud for Analytics, Cloud4Analytics, CloudforAnalytics, Cloud 4 Planning, BOC, SAPBusinessObjectsCloud, BusinessObjectsCloud, BOBJcloud, BOCloud., SAC, SAP AC, Cloud-Analytics, CloudAnalytics, SAPCloudAnalytics,Error, Issue, System, Data, User, Unable, Access, Connection, Sac, Connector, Live, Acquisition, Up, Set, setup, Model, BW, Connect, Story, Tenant, Import, Failed, Using, Working, SAML, SSO, sapanalyticscloud, sap analytical cloud, sap analytical cloud, SAC, sap analyst cloud, connected, failure, stopped, sap analyst cloud, https://hcs.cloud.sap, https://hanacloudservices.cloud.sap, https://cloudanalytics.accounts.ondemand.com, https://hanacloudservices-us.accounts.ondemand.com, https://www.sap.com, https://help.sap.com, predictive analytics (analysis), data analysis (analytics) tools, analytics tools, sap analytics cloud, data literacy, advanced analytics, data democratization, analytics software, real time analytics, self service analytics, advanced data analytics, analytics as a service, analytics cloud / cloud analytics, saas analytics, cloud bi, enterprise planning, cloud data analytics, cloud based analytics, analytics cloud platform, modern analytics, real time analysis, cloud analytics solution(s), what is sap analytics cloud, cloud analytics tools, analytics in the cloud, cloud analytics software, busy, stuck, endless loop, looping, dimension map, [Application Error]:Cannot read properties of undefined (reading 'toUpperCase'), target data selection, looping, loading, running, not completed, not finished , KBA , LOD-ANA-PL-PLI , Planning Integration (BPC import/export/writeback) , LOD-ANA-ML-DI , Data Integration, Data Export API, Data Import API , Problem