Okay, the user sent "tie-ins" and wants it translated into Thai. Let me check the rules again. Rule 1 says to translate all content into Thai. Rule 2 says if it's already in Thai, leave it as is. Rule 3 is to provide only the translation without explanations.
First, I need to confirm if "tie-ins" is in Thai. It's not, it's English. So I need to translate it. The word "tie-ins" can mean different things depending on context. It might refer to promotional tie-ins, like merchandise related to a movie or book. In Thai, the term for promotional tie-ins is often "สินค้าเสริม" or "ของแถม". Alternatively, if it's about something being connected or linked, maybe "การเชื่อมโยง" or "การผูกขาด". But without more context, the most common translation for "tie-ins" in marketing would be "สินค้าเสริม".
Wait, let me double-check. If it's about cross-promotions or collaborations, maybe "การร่วมมือ" or "การโปรโมตแบบร่วมกัน". But the user didn't provide context. Since the user just sent "tie-ins" as a standalone word, the safest bet is to use the most direct translation. However, in Thai, sometimes direct translations don't capture the nuance.
Alternatively, maybe "การผูก" but that's more like "binding". Hmm. Let me think of examples. If a movie has tie-ins, it's usually merchandise. So "สินค้าเสริม" is probably the best fit here. I'll go with that.