Data Studio allows you to easily manage the added data sources [Resource - Manage added data sources]. You can edit the fields to match your needs. Some fields (dimensions) require a manual change to show correctly.
- Use search to find the field you want to edit
- Change the type of the selected field
- With Year & Week type needs to be changed in to "ISO Year Week (YYYYww)" to make these appear correctly (apply to both Mon-Sun and Sun-Sat)
- With Year & Month, you need to use "Year Month (YYYYMM)" for it to appear correctly
- Do any other edits you wish to