Hi Jose,
The JSON output looks good, but I am unsure whether the [ bracket at the start could create issues. When looking at the API documentation, notice how the request body starts with {"children": [ instead of [{"children": [ as in the JSON output attached in your original message.
So, this is one thing you can try to change and see if it solves the issue.
Otherwise, another solution you can try is to use the “Make an API call” module, with the Append Block Children endpoint
Hey @Simo , thank you so much for the pointers. I cannot manage to make the body to get the children key wrapper… my Parse JSON is only getting me the array of blocks without the key…
I tried using the API Call module, but it give me the same error…
Then, I tried structuring my Parse JSON to get me all kinds of blocks, but now I get a type validation error, but I am going crazy trying to find the actual error…