Can I post without a price?

Distinguished colleagues, I'm currently navigating the platform for a new listing and have encountered a point of uncertainty regarding pricing. Specifically, can one effectively post trade opportunities or inquiries on GMAJOR without explicitly stating a price at the outset? My concern is that omitting a price might hinder genuine engagement or lead to unnecessary back-and-forth if the expectation is for a clearer initial proposition. However, in certain nuanced B2B transactions, particularly for customized solutions or when exploring market interest for a bespoke product, a fixed price isn't always the immediate first step. I'd appreciate insights from those who have experience with this. Are there best practices or recommended approaches for initiating discussions where pricing is a subsequent element of negotiation? What are the potential benefits and drawbacks of posting without a concrete price in our global trade context? Thank you for your valuable contributions. Sincerely, [Your Name/Company Name]