Insert Text or Table Button is Greyed Out

When trying to insert a table or single-cell text, if you see the Insert or Link button greyed out (Incorrect insertion point), checking the following:
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Make sure no text or other content is highlighted in InDesign/InCopy when inserting data via Integrate.
- You cannot insert table or single-cell text inside an existing table.
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Place the cursor at an active insertion point (the blinking cursor) in a text frame before inserting the data.