1.如上问题
在提单生成后，货物起运后，理论上修改提单内容是非常困难且不建议的。提单是一份关于货物运输的合同，同时也是货物所有权的凭证。一旦提单生成并在货物起运后，修改提单内容可能导致法律纠纷和不必要的麻烦。然而，在特殊情况下，如果确实需要修改提单内容，如数量、规格等，需要通过货代与承运人协商，可能需要额外的文件和手续费。但是，请注意，这种情况下修改提单内容的风险较高。
货代提单（Freight Forwarder's Bill of Lading, FBL）和海运提单（Ocean Bill of Lading, OBL）不是完全相同的概念，尽管它们都是提单的类型。
货代提单：是由货运代理人（Freight Forwarder）签发的提单，主要用于货物的整合和分拨。货代提单通常不具备在第三方支付机构的信用证下用于货款结算的功能。
海运提单：是由承运人（Carrier）或其代理人签发的提单，记录了货物从起运港到目的港的详细运输信息。海运提单通常具有在第三方支付机构的信用证下用于货款结算的功能。这种提单对于国际贸易尤其重要，因为它代表了货物所有权，并在买卖双方之间作为交割凭证。
在实际操作中，货代提单在货物运输的整个过程中可能被替换为海运提单。一般来说，在货物运输过程中，货代提单在货物抵达中转港时可能被替换为海运提单。这种情况下，货代需要将原始的货代提单与承运人进行交换，以便获得海运提单。
2.Shipping Company Conference Loading Ratio,how about this
A Shipping Company Conference is an organization where a group of shipping companies come together to collaborate, negotiate, and cooperate on various aspects of their shipping business, such as coordinating capacity, setting freight rates, and establishing service standards. By doing this, they aim to increase their competitiveness in the market and maintain stability.
One of the factors that conferences may regulate is the Loading Ratio. The Loading Ratio refers to the proportion of the actual cargo load on a vessel compared to the vessel's maximum cargo capacity. Shipping Company Conferences may establish specific Loading Ratio requirements based on factors such as market demand, route characteristics, and vessel type.
The main purpose of setting Loading Ratio requirements is to ensure the efficient utilization of capacity and optimize vessel operation efficiency. By setting Loading Ratio requirements for member shipping companies, conferences can encourage members to maintain a reasonable Loading Ratio during transportation, thereby improving overall capacity utilization and reducing operating costs.
The specific Loading Ratio requirements may vary depending on the Shipping Company Conference. In practice, member shipping companies must adjust their vessel capacity according to the Loading Ratio requirements outlined in the agreement to comply with the conference's regulations. If necessary, members can negotiate adjustments to the Loading Ratio requirements within the agreement to adapt to market changes and operational needs.