Label W decides to use the DDEX feed to update their asset metadata. Which of the following is a crucial last step to avoid upload errors?

Validating the metadata is crucial because it ensures that the data conforms to the DDEX standard and YouTube's specific requirements before submission. This proactive step catches errors like incorrect formatting, missing mandatory fields, or invalid values, preventing upload failures and processing delays. Without validation, even minor discrepancies can lead to the entire feed being rejected, requiring time-consuming re-submissions. Adding asset labels and Custom IDs are steps in preparing the metadata, not the final validation. Linking Composition Share Assets to Sound Recordings is a separate rights management task that occurs after successful asset ingestion, not a pre-upload validation step.