The Cloud version works a little differently from the local version of IBM Planning Analytics. IBM Planning Analytics on Cloud will only pick up a csv file from the shared folder (\\data\s..);
When you define the csv data directory make sure that the ‘Data Source Name’ is different from the ‘Data Source Name on Server’. For example, if you create a folder named ‘DATA_IMPORT’ in the server data folder (e.g., tm1).
The Data source name will be:
Data Source Name: \\data\s\prod\tm1\DATA_IMPORT\xxx.csv
The ‘Data Source Name on Server’ will be relative to the ‘Data Source Name’ directory
Use ’ ..\’ if the file is within the same folder level ‘data’ folder.
Use .\ if the file is located in the ‘data’ folder.
For more information refer to this IBM Knowledge Base article.