In ArcGIS Online, using the Analysis > Manage Data > Merge Layers tool merges the features, but does not add the attachments to the output feature service.

Zusätzliche Informationen

Workaround

Running the Merge geoprocessing tool in ArcGIS Pro merges the features and the attachments. A Standard or an Advanced license is required to run the tool in ArcGIS Pro.

Refer to the following links for more information:

https://pro.arcgis.com/en/pro-app/tool-reference/data-management/merge.htm

https://doc.arcgis.com/en/arcgis-online/analyze/merge-layers.htm

Schritte zur Reproduzierung